
同底数幂的乘法
-b^2*(-b)^2m^3*(-m^3)*(-m)^2求这两题的计算结果和答案。(上课没怎么听....)...
-b^2*(-b)^2 m^3*(-m^3)*(-m)^2求这两题的计算结果和答案。(上课没怎么听....)
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解:-b²×(-b)²
=-b²×b²
=-1×b²×b²
=-1×b^(2+2)
=-1×b^4
=-b^4
m³×(-m³)×(-m)²
=m³×(-m)^(3+2)
=m³×(-m)^5
=m³×(-1)×m^5
=-1×m^(3+5)
=-1×m^8
=-m^8
=-b²×b²
=-1×b²×b²
=-1×b^(2+2)
=-1×b^4
=-b^4
m³×(-m³)×(-m)²
=m³×(-m)^(3+2)
=m³×(-m)^5
=m³×(-1)×m^5
=-1×m^(3+5)
=-1×m^8
=-m^8
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